3VL4731-1TE46-0AA0 SIEMENS

The 3VL4731-1TE46-0AA0 is a robust 4-pole circuit breaker from Siemens, designed for reliable line protection in industrial and commercial applications. This VL400N series breaker offers a standard breaking capacity of Icu=55kA at 415V AC, ensuring effective protection against overcurrents and short circuits. Equipped with an Electronic Trip Unit ETU20, it provides precise and adjustable protection characteristics. The ETU20 features LSI functions, including overload protection (L), short-circuit protection with adjustable time delay (S), and instantaneous short-circuit protection (I). The rated current (In) is 315A, with an adjustable overload protection range (IR) from 128A to 315A. The short-circuit protection (ISD) can be set from 1.5 to 10 times the IR value, while the instantaneous short-circuit protection (II) is fixed at 11 times the In value. This model is designed with an unprotected neutral (N) and does not include an auxiliary release or auxiliary/alarm switch. Its primary function is to safeguard electrical circuits from damage caused by overloads and short circuits, enhancing the safety and reliability of electrical systems. The 3VL4731-1TE46-0AA0 is suitable for a wide range of applications where dependable circuit protection is essential.